I'm assuming they want another deal. But how do they think that that will happen?
If there's a GE, do they think that the EU will say 'OK let's talk, we like you more than the previous lot, here's a better deal'. (and who seriously thinks they stand a chance of winning, anyway)?
and, then, they will come home with the New Deal, and campaign against it.
All I can see is a Party slowly committing political suicide.